Weather forecast for: Newcastle WY
Last Update: 12:31 pm MDT Oct 18, 2026
This Afternoon: Sunny, with a steady temperature around 63. South wind around 6 mph.
Tonight: Mostly clear, with a low around 36. Southeast wind 5 to 7 mph.
Monday: Sunny, with a high near 61. Southeast wind 5 to 11 mph, with gusts as high as 21 mph.
Monday Night: Clear, with a low around 44. East wind 6 to 9 mph, with gusts as high as 20 mph.
Tuesday: Sunny, with a high near 68. East wind around 5 mph becoming calm in the morning.
Tuesday Night: Mostly clear, with a low around 44. Calm wind becoming northeast around 5 mph.
Wednesday: Sunny, with a high near 66.
Wednesday Night: Mostly clear, with a low around 50.
Thursday: Mostly sunny, with a high near 71.
Thursday Night: A slight chance of rain after midnight. Mostly cloudy, with a low around 53.
Friday: A slight chance of rain. Partly sunny, with a high near 67.
Friday Night: A chance of rain. Mostly cloudy, with a low around 42.
Saturday: A slight chance of rain. Mostly sunny, with a high near 52.
WeatherWorld.com
